A calcium channel mutant mouse model of hypokalemic periodic paralysis
نویسندگان
چکیده
منابع مشابه
A calcium channel mutant mouse model of hypokalemic periodic paralysis.
Hypokalemic periodic paralysis (HypoPP) is a familial skeletal muscle disorder that presents with recurrent episodes of severe weakness lasting hours to days associated with reduced serum potassium (K+). HypoPP is genetically heterogeneous, with missense mutations of a calcium channel (Ca(V)1.1) or a sodium channel (Na(V)1.4) accounting for 60% and 20% of cases, respectively. The mechanistic li...
متن کاملA sodium channel knockin mutant (NaV1.4-R669H) mouse model of hypokalemic periodic paralysis.
Hypokalemic periodic paralysis (HypoPP) is an ion channelopathy of skeletal muscle characterized by attacks of muscle weakness associated with low serum K+. HypoPP results from a transient failure of muscle fiber excitability. Mutations in the genes encoding a calcium channel (CaV1.1) and a sodium channel (NaV1.4) have been identified in HypoPP families. Mutations of NaV1.4 give rise to a heter...
متن کاملA calcium channel mutation causing hypokalemic periodic paralysis.
The only calcium channel mutation reported to date is a deletion in the gene for the DHP-receptor alpha 1-subunit resulting in neonatal death in muscular dysgenesis mice (1). In humans, this gene maps to chromosome 1q31-32. An autosomal dominant muscle disease, hypokalemic periodic paralysis (HypoPP), has been mapped to the same region (2). Sequencing of cDNA of two patients revealed a G-to-A b...
متن کاملAltered calcium currents in human hypokalemic periodic paralysis myotubes expressing mutant L-type calcium channels.
In a genome-wide search, linkage of hypokalemic periodic paralysis (HypoPP), a muscle disease with autosomal dominant inheritance, to chromosome 1q31-32 and cosegregation with the gene encoding the L-type calcium channel/DHP receptor alpha 1 subunit has been reported (Fontaine et al., 1994). Here we show the extended haplotypes of a large HypoPP family who made the detection of the gene product...
متن کاملPrimary hypokalemic periodic paralysis.
Primary hypokalemic periodic paralysis (PHPP) is a rare entity first described by Shakanowitch in 1882. Only a few cases of PHPP have been reported in Indian literature in adults(l). In children hypokalemic paralysis secondary to gastroenteritis and chronic renal disease is much more common than primary disease(2). We hereby report a case of PHPP in a child, successfully managed with acetazolam...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 2012
ISSN: 0021-9738
DOI: 10.1172/jci66091